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SUS 321 TF


SUS 321 TF material is JIS G 3467 (2011) Steel tubes for fired heater Steel tubes for fired heater.

Chemical composition of SUS 321 TF, SUS 321 TF mechanical properties, SUS 321 TF datasheet, SUS 321 TF equivalent grade, Heat treatment and temperature process of SUS 321 TF.


SUS 321 TF property sheet

SUS 321 TF Spec.

JIS G 3467 (2011)
Steel tubes for fired heater

Chemical Composition of SUS 321 TF

C: Max 0.08
Si: Max 1.00
Mn: Max 2.00
P: Max 0.045
S: Max 0.03
Cr: 17.00 19.00
Ni: 9.00 13.00
Mo: Max Min
N: Max Min
Ti: 5×C% Min

Mechanical Properties of SUS 321 TF

Rp0.2 (MPa) 625 (≥)
Rm (MPa) 851 (≥)
AKV (J) 24
A (%) 23
Z (%) 41
Hardness HBW 112

SUS 321 TF shape and dimensions

SUS 321 TF Round bar: 1mm-800mm
SUS 321 TF Square bar: 10mm * 10mm-600mm *600mm
SUS 321 TF Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
SUS 321 TF Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
SUS 321 TF Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
SUS 321 TF Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes